practize #2

Masonry Chimney Clearance

• Minimum clearance of any portion of a masonry chimney to combustibles is 2 inches.

Openings in Fire Walls

• Openings through fire walls cannot exceed 25 square feet.
• The aggregated width of all openings at any floor level in a non-sprinkled building shall not exceed 25% of the length of the wall.

Cutting into Joists, Beams, or Rafters

• When cutting or boring a hole into joists, beams, or rafters, the hole must be a minimum of 2 inches away from the top or bottom of the member.

Egress Door Clearance

• The minimum required clear opening for a dwelling unit egress door is 32 inches.

Non-Combustible Construction

• Non-combustible constructions are considered steel, concrete, masonry, and gypsum.

Type 4 Construction

• In Type 4 construction, the minimum size of beams and girders is 8 inches.

Ladder Setup

• The proper angle for setting up a ladder is to place its base 1/4 of the working length of the ladder from the wall or other vertical surface.

Insulation Requirements

• The required R value for wood framed walls in MA is R-20.

Fire-Resistant Plywood

• A 3/8 inch sheet of plywood, when tested, is best defined as a 30-minute fire-resistant material.

Concrete Slump

• Slump of concrete placed in removable forms shall not exceed 1 inch.

Fire Retardant Treated Wood (FRTW)

• Fire Retardant Treated Wood (FRTW) is tested in accordance with ASTM E 84 or UL 723.

Fenestration Rating

• NFRC-100 is a nationally recognized test standard for determining U-factor and solar heat gain coefficient.

Energy Code Requirements

• Energy code requires that non-conditioned space which is altered to become conditioned space must be insulated to meet current energy code requirements.

Masonry Foundation Wall

• Masonry foundation wall needs to be at least 6 inches above finished grade if not using masonry veneer.

Egress Door Requirements

• When an occupant load is 50 or more, egress doors shall be at least 36 inches wide.

Permit Suspension

• A permit may be suspended or revoked for all reasons, except for non-payment of fees.

Ferrous Metals

• Ferrous metals contain mostly iron.

Anchor Bolt Penetration

• If an anchor bolt is embedded 6 inches into concrete, it needs to penetrate at least 1 inch more.

Steel Framed Ceilings

• The required U factor for steel framed ceilings in MA is U-0.035.